Patients who take newer kinds of antipsychotic medications may have a higher risk of developing serious blood clots, say researchers from Nottingham, England in an article published in the BMJ (British Medical Journal). Specifically, the risk is of venous thromoembolism - a collective term for DVT (deep vein thrombosis) and pulmonary embolism. Antipsychotic drugs are not only prescribed for patients with psychosis, but occasionally for such conditions as vertigo, vomiting or nausea.